Controllable seeding depth seeder

By designing a seeder with controllable sowing depth, the opening and closing of the semi-cone is controlled by a handle and a pull rope, combined with a depth adjustment device, which solves the problem of difficult sowing depth control and improves sowing speed and seed germination rate.

CN224419343UActive Publication Date: 2026-06-30XINJIANG AGRI UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINJIANG AGRI UNIV
Filing Date
2025-08-08
Publication Date
2026-06-30

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Abstract

This utility model relates to the field of seeding device technology and discloses a controllable seeding depth seeder, including a cylinder. A spring is provided at the bottom of the cylinder, and each end of the spring has a semi-conical tube hinged to the cylinder to form a conical shape. Symmetrically arranged handles are provided at the top of the cylinder, and a connecting rod is provided at the bottom of each handle. A handle is hinged to the connecting rod. Symmetrically arranged through holes are provided on the cylinder. One end of each handle has a pull rope passing through the through holes, located inside the cylinder, and fixedly connected to the semi-conical tube. A depth adjustment device is threadedly connected to the bottom of the cylinder. The advantages of this utility model compared to existing technologies are: adjustable seeding depth and fast seeding speed.
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Description

Technical Field

[0001] This utility model relates to the field of seeding device technology, specifically to a seeder with controllable seeding depth. Background Technology

[0002] Agriculture is an industry that produces agricultural products by artificially planting and cultivating crops. In the process of agricultural planting, it is necessary to sow seeds and bury them in the soil before subsequent cultivation work can be carried out, so that agricultural products can grow.

[0003] Large plots of land are generally sown using seeders, while small plots are sown manually. When sowing, a small hole is dug in the ground, the seeds are placed in the hole, and then the hole is filled with soil. The sowing speed is slow, and the depth of the hole depends entirely on the experience of the person sowing. Often, the hole is too deep or too shallow, which affects the germination rate of the seeds and needs to be improved. Utility Model Content

[0004] (I) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to overcome the above difficulties and provide a controllable seeding depth seeder with adjustable seeding depth and fast seeding speed.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a controllable seeding depth seeder, including a cylinder, a spring at the bottom of the cylinder, and semi-conical cylinders at both ends of the spring that are hinged to the cylinder and can form a conical cylinder. A symmetrically arranged handle is provided at the top of the cylinder, a connecting rod at the bottom of the handle, a handle hinged to the connecting rod, a symmetrically arranged through hole on the cylinder, and a pull rope at one end of the handle that passes through the through hole, is located inside the cylinder, and is fixedly connected to the semi-conical cylinder.

[0008] The bottom threaded connection of the cylinder is equipped with a depth adjustment device.

[0009] As an improvement, a guide wheel is provided inside the through hole, and the pull rope is located on the guide wheel.

[0010] As an improvement, the semi-conical cylinder is provided with a protrusion and an ear, the spring is sleeved on the protrusion, and the pull rope is fixedly connected to the ear.

[0011] As an improvement, the depth adjustment device includes a screw cylinder threaded onto a cylindrical body, and a limiting ring is provided around the screw cylinder.

[0012] As an improvement, the top of the cylinder is provided with a tapered part.

[0013] (III) Beneficial Effects

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] 1. The handle and the pull rope work together to close the semi-conical tube to form a conical tube, allowing the cylinder to be inserted into the soil. The spring can open the semi-conical tube to allow the seeds to enter the soil.

[0016] 2. The screw and limiting cylinder on the depth adjustment device work together to control the depth at which the cylinder is inserted into the soil, thereby controlling the sowing depth. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 .

[0019] Figure 3 This is a side view of the structure of this utility model.

[0020] Figure 4 This is a utility model Figure 3 A schematic diagram of the structure in cross-section at point AA.

[0021] As shown in the figure: 1. Cylinder; 2. Spring; 3. Semi-conical cylinder; 4. Handle; 5. Connecting rod; 6. Handle; 7. Through hole; 8. Pull rope; 9. Depth adjustment device; 10. Guide wheel; 11. Protrusion; 12. Ear; 13. Screw; 14. Limiting ring; 15. Conical part. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0023] Example 1

[0024] Combined with appendix Figure 1-4 A controllable seeding depth seeder includes a cylinder 1, a spring 2 at the bottom of the cylinder 1, and semi-conical cylinders 3 at both ends of the spring 2 that are hinged to the cylinder 1 and can form a conical cylinder. A symmetrically arranged handle 4 is provided at the top of the cylinder 1, and a connecting rod 5 is provided at the bottom of the handle 4. A handle 6 is hinged to the connecting rod 5. A symmetrically arranged through hole 7 is provided on the cylinder 1, and a pull rope 8 is provided at one end of the handle 6 that passes through the through hole 7, is located inside the cylinder 1, and is fixedly connected to the semi-conical cylinder 3.

[0025] The person holds the handle 4 with their hand and the grip 6 with their fingers. The grip 6 rotates around the connecting rod 5, which tightens the pull rope 8. The pull rope 8 pulls the semi-conical cylinder 3 to compress the spring 2, causing the semi-conical cylinders 3 to close together. The person inserts the closed semi-conical cylinder 3 into the soil, releases the grip 6, and the spring 2 extends, causing the semi-conical cylinder 3 to open up. The person puts the seeds into the cylinder 1 from the top of the cylinder 1. The seeds fall downwards into the pit created by the semi-conical cylinder 3. The device is then pulled out, and the pit is flattened with the foot.

[0026] The bottom threaded connection of the cylinder 1 is equipped with a depth adjustment device 9.

[0027] The depth adjustment device 9 includes a screw cylinder 13 threaded onto the cylinder 1, and a limiting ring 14 is provided around the screw cylinder 13.

[0028] Rotate the screw cylinder 13 on the depth adjustment device 9. The screw cylinder 13 drives the limit ring 14 to rotate. Adjust the position of the limit ring 14 on the cylinder 1. When the device is inserted into the soil, the limit ring 14 abuts against the soil, preventing the device from continuing to be inserted into the soil, thereby achieving the purpose of controlling the pit depth and thus controlling the sowing depth.

[0029] When sowing alfalfa, red clover, or other seeds, rotating the depth adjustment device can make the limiting ring 3-5 cm away from the bottom of the semi-conical cylinder.

[0030] The outer side of the semi-cone 3 is marked with a marker to indicate the depth of insertion into the soil.

[0031] The through hole 7 is provided with a guide wheel 10, and the pull rope 8 is provided on the guide wheel 10. The guide wheel 10 can guide the pull rope 8 and prevent the pull rope 8 from contacting the cylinder 1 and causing wear.

[0032] The semi-conical cylinder 3 is provided with a protrusion 11 and an ear 12. The spring 2 is sleeved on the protrusion 11, and the pull rope 8 is fixedly connected to the ear 12.

[0033] The top of the cylinder 1 is provided with a conical part 15, which makes it easier for personnel to put seeds into the cylinder 1.

[0034] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, alterations, deletions of some features, additions of features, or recombinations of features to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the innovative principles of the present invention shall still fall within the scope of the technical solutions of the present invention.

Claims

1. A seeder with controllable seeding depth, characterized in that: Includes a cylinder (1), the bottom of the cylinder (1) is provided with a spring (2), the two ends of the spring (2) are respectively provided with a semi-conical cylinder (3) which is hinged to the cylinder (1) and can form a conical cylinder, the top of the cylinder (1) is provided with a symmetrically arranged handle (4), the bottom of the handle (4) is provided with a connecting rod (5), the connecting rod (5) is hinged with a handle (6), the cylinder (1) is provided with a symmetrically arranged through hole (7), and one end of the handle (6) is provided with a pull rope (8) which passes through the through hole (7), is located inside the cylinder (1), and is fixedly connected to the semi-conical cylinder (3); The bottom threaded connection of the cylinder (1) is provided with a depth adjustment device (9).

2. The controlled depth of seeding seeder of claim 1, wherein: The through hole (7) is provided with a guide wheel (10), and the pull rope (8) is provided on the guide wheel (10).

3. The controllable depth seeder of claim 1, wherein: The semi-conical tube (3) is provided with a protrusion (11) and an ear (12). The spring (2) is sleeved on the protrusion (11), and the pull rope (8) is fixedly connected to the ear (12).

4. The controllable depth seeder of claim 1, wherein: The depth adjustment device (9) includes a screw cylinder (13) threaded onto a cylinder (1), and a limiting ring (14) is provided around the screw cylinder (13).

5. The controllable seeding depth seeder according to claim 1, characterized in that: The top of the cylinder (1) is provided with a tapered part (15).